*{
	margin: 0;
	padding: 0;
}
body{
	height: 100vh;
	width: 100vw;
	background-image: radial-gradient(#1b2735 0%, #090a0f 100%);
	text-align: center;
}
.title{
	font-size: 80px;
	color: white;
	font-weight: 300;
	letter-spacing: 20px;
	position: absolute;
	left: 50%;
	margin-left: -210px;
	top: 50%;
	margin-top: -40px;
	background-image: linear-gradient(#fff,#090a0f);
	background-clip: text;
	-webkit-background-clip: text;
	color: transparent;
}

@function createStar($count){
	$shadowStr:unquote($string: "#{random(100)}vw #{random(100)}vh white");
	@for $i from 1 through $count{
		$width:random($limit: 10000) / 100;
		$height:random($limit: 10000) / 100;
		$shadowStr:unquote($string: "#{$shadowStr},#{$width}vw #{$height}vh white");
	}
	@return $shadowStr;
}

$count:1000;
@for $i from 1 through 5 {
	$duration:100s;
	.start_box#{$i}{
		position: fixed;
		$size:#{$i}px;
		width: $size;
		height: $size;
		background-color: white;
		border-radius: 50%;
		box-shadow: createStar($count / $i);
		animation: moveUp #{$duration / $i} linear infinite;
		&::after{
			content: '';
			width: inherit;
			height: inherit;
			background-color: inherit;
			border-radius: 50%;
			position: fixed;
			box-shadow: inherit;
			top: 100vh;
		}
	}
}

@keyframes moveUp{
	100%{
		transform: translateY(-100vh);
	}
}
